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FANUC Alarm MOTN-108 — STOP INTR seglist error

Manufacturer wording — STOP INTR seglist error (G:%d^2)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MOTN-108 (“STOP INTR seglist error”): Internal interpolator error: error in seg list management First check: Perform a cold start: 1.

Updated 2026-09-17 · LogrobotLM reference

Description

Internal interpolator error: error in seg list management

Remedy

Perform a cold start: 1. Turn off the robot. 2. On the teach pendant, press and hold the SHIFT and RESET keys. 3. While still pressing the SHIFT and RESET keys, turn on the robot. If the error is not cleared, document the events that led to the error and call your FANUC Robotics technical representative.

Related codes

MOTN-106STOP Process motion doneMOTN-107STOP Bad filter typeMOTN-109STOP Internal INTR errorMOTN-110STOP Use FINE in last L

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →